CVE-2026-24408

MediumCVSS 5.0/10Last modified Jun 17, 2026

Description

sigstore-python is a Python tool for generating and verifying Sigstore signatures. Prior to version 4.2.0, the sigstore-python OAuth authentication flow is susceptible to Cross-Site Request Forgery. `_OAuthSession` creates a unique "state" and sends it as a parameter in the authentication request but the "state" in the server response seems not not be cross-checked with this value. Version 4.2.0 contains a patch for the issue.

Metrics

CVSS 3.1 5.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-352

Affected software

No affected versions have been published.

Timeline

Published
Jan 26, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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